Microsoft Beats Anthropic and OpenAI on Key Cybersecurity Te…
Microsoft Beats Anthropic and OpenAI on Key Cybersecurity Te…
Publish Date: 2026-05-14 12:26:00
Source Domain: www.pymnts.com
A new Microsoft artificial intelligence (AI) system has reportedly outperformed Anthropic in a cybersecurity test.
The system, dubbed “MDASH,” was introduced this week along with the revelation of 16 new vulnerabilities it uncovered in various versions of Windows, tech news website GeekWire reported Wednesday (May 13).
According to the report, MDASH was able to surpass Anthropic’s high-profile Mythos model on a “leading cybersecurity benchmark,” employing 100-plus specialized artificial intelligence (AI) agents working in tandem across multiple models to uncover real-world software vulnerabilities.
That metric is called the CyberGym benchmark, created by UC Berkeley researchers to determine how well AI systems can replicate real-world vulnerabilities across 1,507 tasks pulled from 188 open-source software projects. MDASH scored 88.45% on the test, with Mythos at 83.1% and OpenAI’s GPT-5.5 at 81.8%, the report said.
MDASH (“multi-model agentic scanning harness”) works by assigning different agents to do different jobs, the report added. Some scan code for potential vulnerabilities, while another group debates whether each discovery is real and exploitable. A final group puts together proof-of-concept attacks to confirm the bugs are real.
Mythos, on the other hand, is a single AI model operating inside an agent framework, GeekWire said. The startup has limited its release to a small group of companies—Microsoft included—known as “Project Glasswing.”
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In the wake of Mythos’ release, OpenAI has introduced Daybreak, its own agentic security offering that works with the company’s Codex coding tool.
“AI is already good and about to get super good at cybersecurity; we’d like to start working with as many companies as possible now to help them continuously secure themselves,” OpenAI CEO Sam Altman wrote on social media platform X earlier this week.
This week also saw reports that French AI startup…
